[gst-devel] how to create a pipeline to record video from camera?

michael mcygogo at gmail.com
Thu Dec 23 07:38:22 CET 2010 

Is there nobody know how to record video from camera to a MP4 container with
the H264 encoding ?

On Thu, Dec 23, 2010 at 9:46 AM, michael <mcygogo at gmail.com> wrote:

> neither qtmux nor mp4mux is not work well
>
>
> On Wed, Dec 22, 2010 at 11:24 PM, Timothy Braun <braunsquared at gmail.com>wrote:
>
>> Not qtmux, use mp4mux.
>>
>>
>> On Wed, Dec 22, 2010 at 10:10 AM, michael <mcygogo at gmail.com> wrote:
>>
>>> I have tested changing the muxer to qtmux, but it still not work
>>>
>>>
>>> On Wed, Dec 22, 2010 at 10:58 PM, Timothy Braun <braunsquared at gmail.com>wrote:
>>>
>>>> I was never able to get the ffmpeg mpeg4 mixer to work quite right. I
>>>> found that mp4mux, an extension of qtmux, works much better. If you inspect
>>>> the ffmpeg mp4 muxer they actually suggest that you use a different one as
>>>> it's unstable.
>>>>
>>>> Best,
>>>> Tim
>>>>
>>>> Sent from my iPhone
>>>>
>>>> On Dec 22, 2010, at 8:27 AM, michael <mcygogo at gmail.com> wrote:
>>>>
>>>> I just ran it :
>>>> gst-launch -e v4l2src num-buffers=200  !
>>>> video/x-raw-yuv,width=640,height=480,framerate=30/1 ! ffmpegcolorspace !
>>>> ffenc_mpeg4 ! mp4mux ! filesink location=record.mp4
>>>> And got a mp4 file , but it still cannot be playbacked, and give the
>>>> error info:
>>>> Playing record.mp4.
>>>> libavformat file format detected.
>>>> [mpeg4 @ 0x9376c10]hmm, seems the headers are not complete, trying to
>>>> guess time_increment_bits
>>>> [mpeg4 @ 0x9376c10]my guess is 5 bits ;)
>>>> [mpeg4 @ 0x9376c10]looks like this file was encoded with
>>>> (divx4/(old)xvid/opendivx) -> forcing low_delay flag
>>>> [mpeg4 @ 0x9376c10]picture size invalid (0x0)
>>>> [mpeg4 @ 0x9376c10]get_buffer() failed (-1 0 0 (nil))
>>>> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x9375640]Could not find codec parameters
>>>> (Video: mpeg4, yuv420p)
>>>> LAVF_header: av_find_stream_info() failed
>>>> ISO: File Type Major Brand: ISO/IEC 14496-1 (MPEG-4 system) v2
>>>> Quicktime/MOV file format detected.
>>>> [mov] Video stream found, -vid 0
>>>> VIDEO:  [mp4v]  640x480  24bpp    inf fps    0.0 kbps ( 0.0 kbyte/s)
>>>> open: No such file or directory
>>>> [MGA] Couldn't open: /dev/mga_vid
>>>> open: No such file or directory
>>>> [MGA] Couldn't open: /dev/mga_vid
>>>> [VO_TDFXFB] Can't open /dev/fb0: Permission denied.
>>>> [VO_3DFX] Unable to open /dev/3dfx.
>>>>
>>>> ==========================================================================
>>>> Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
>>>> Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
>>>>
>>>> ==========================================================================
>>>> Audio: no sound
>>>> Starting playback...
>>>> VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
>>>> VDec: using Planar YV12 as output csp (no 0)
>>>> Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
>>>> VO: [xv] 640x480 => 640x480 Planar YV12
>>>> V:   0.0 200/200 ??% ??% ??,?% 0 0
>>>>
>>>> Exiting... (End of file)
>>>>
>>>> But the error info not like the old one!
>>>>
>>>> On Wed, Dec 22, 2010 at 9:17 PM, liJin < <lijinsyam at gmail.com>
>>>> lijinsyam at gmail.com> wrote:
>>>>
>>>>> I think thats the issue...
>>>>>
>>>>>
>>>>> gst-launch -e v4l2src ! 'video/x-raw-yuv,width=320,height=240,
>>>>> framerate=30/1' ! ffmpegcolorspace ! ffenc_mpeg4 ! mp4mux ! filesink
>>>>> location=1.mp4
>>>>>
>>>>> run with* -e *option
>>>>>
>>>>>
>>>>>
>>>>> On Wed, Dec 22, 2010 at 6:01 PM, Santakivi Topi <<Topi.Santakivi at digia.com>
>>>>> Topi.Santakivi at digia.com> wrote:
>>>>>
>>>>>> On 12/22/2010 12:18 PM, michael wrote:
>>>>>> > Now I can record the video to a AVI file with mpeg4 encoding by :
>>>>>> > gst-launch v4l2src ! 'video/x-raw-yuv,width=320,height=240,
>>>>>> > framerate=30/1' ! ffmpegcolorspace ! ffenc_mpeg4! avimux! filesink
>>>>>> > location=record.avi
>>>>>> >
>>>>>> > But I got two issues:
>>>>>> > 1: I want record as a MP4 file, I do it like this:
>>>>>> > gst-launch v4l2src ! 'video/x-raw-yuv,width=320,height=240,
>>>>>> > framerate=30/1' ! ffmpegcolorspace ! ffenc_mpeg4 ! mp4mux! filesink
>>>>>> > location=record.avi
>>>>>> > I can record the video , but when I playback it by mplayer, I got a
>>>>>> error:
>>>>>> > Playing ./record.mp4.
>>>>>> > libavformat file format detected.
>>>>>> > [mov,mp4,m4a,3gp,3g2,mj2 @ 0x8741640]moov atom not found
>>>>>> > LAVF_header: av_open_input_stream() failed
>>>>>> > ISO: File Type Major Brand: ISO/IEC 14496-1 (MPEG-4 system) v2
>>>>>>
>>>>>> When recording, with the above gst-launch line, do you stop
>>>>>> the pipeline with Ctrl+C..?
>>>>>>
>>>>>> It could be that the file container doesn't get fully written
>>>>>> in case of such an interrupt and that's why the clip doesn't play.
>>>>>>
>>>>>> For example, if you use this pipeline and
>>>>>> stop it with Ctrl+C, the clip doesn't play:
>>>>>>
>>>>>> gst-launch-0.10 videotestsrc !
>>>>>> 'video/x-raw-yuv,width=320,height=240,framerate=30/1' !
>>>>>> ffmpegcolorspace
>>>>>> ! ffenc_mpeg4 ! mp4mux ! filesink location=test.mp4
>>>>>>
>>>>>> But this pipeline produces a valid video file:
>>>>>>
>>>>>> gst-launch-0.10 videotestsrc num-buffers=200 !
>>>>>> 'video/x-raw-yuv,width=320,height=240,framerate=30/1' !
>>>>>> ffmpegcolorspace
>>>>>> ! ffenc_mpeg4 ! mp4mux ! filesink location=test.mp4
>>>>>>
>>>>>> >
>>>>>> > 2: I want encode the video to H264, so I do like this:
>>>>>> > gst-launch v4l2src ! 'video/x-raw-yuv,width=320,height=240,
>>>>>> > framerate=30/1' ! ffmpegcolorspace ! x264enc! avimux ! filesink
>>>>>> > location=record.avi
>>>>>>
>>>>>> How about adding the format to the caps, e.g .
>>>>>> v4l2src ! 'video/x-raw-yuv,format=(fourcc)I420,width=320,height=240,
>>>>>> framerate=30/1' ! fmpegcolorspace ! x264enc! avimux ! filesink
>>>>>> location=record.avi ?
>>>>>>
>>>>>> BR,
>>>>>> Topi
>>>>>>
>>>>>> > But when I run the pipeline I just get the error info like this:
>>>>>> > Setting pipeline to PAUSED ...
>>>>>> > Pipeline is live and does not need PREROLL ...
>>>>>> > Setting pipeline to PLAYING ...
>>>>>> > New clock: GstSystemClock
>>>>>> > ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
>>>>>> Internal
>>>>>> > data flow error.
>>>>>> > Additional debug info:
>>>>>> > gstbasesrc.c(2550): gst_base_src_loop ():
>>>>>> > /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
>>>>>> > streaming task paused, reason not-negotiated (-4)
>>>>>> > Execution ended after 1727716724 ns.
>>>>>> > Setting pipeline to PAUSED ...
>>>>>> > Setting pipeline to READY ...
>>>>>> > Setting pipeline to NULL ...
>>>>>> > Freeing pipeline ...
>>>>>> >
>>>>>> > Some one can help me fix the issues? Tks :)
>>>>>> >
>>>>>> >
>>>>>> > On 12/22/10, Timothy Braun < <braunsquared at gmail.com>
>>>>>> braunsquared at gmail.com
>>>>>> > <mailto: <braunsquared at gmail.com>braunsquared at gmail.com>> wrote:
>>>>>> >  > H264 is encoded with x264enc element.
>>>>>> >  >
>>>>>> >  > Sent from my iPhone
>>>>>> >  >
>>>>>> >  > On Dec 22, 2010, at 3:10 AM, wl2776 < <wl2776 at gmail.com>
>>>>>> wl2776 at gmail.com
>>>>>> > <mailto: <wl2776 at gmail.com>wl2776 at gmail.com>> wrote:
>>>>>> >  >
>>>>>> >  >>
>>>>>> >  >>
>>>>>> >  >> michael young wrote:
>>>>>> >  >>>
>>>>>> >  >>> And now , I want to record the video to a MP4 file with the
>>>>>> h264
>>>>>> > encoding
>>>>>> >  >>> format  ,  How can I do ?
>>>>>> >  >>>
>>>>>> >  >>> On Wed, Dec 22, 2010 at 2:26 PM, michael < <mcygogo at gmail.com>
>>>>>> mcygogo at gmail.com
>>>>>> > <mailto: <mcygogo at gmail.com>mcygogo at gmail.com>> wrote:
>>>>>> >  >>>
>>>>>> >  >>>> tks, this is work:   gst-launch v4l2src device=/dev/video0 !
>>>>>> >  >>>> 'video/x-raw-yuv,width=640,height=480,framerate=30/1' !
>>>>>> xvimagesink
>>>>>> >  >>>
>>>>>> >  >>>
>>>>>> >  >>
>>>>>> >  >> Looks like you can't, because h264 encoder is unavailable.
>>>>>> >  >> gst-inspect | grep h264
>>>>>> >  >> doesn't show it.
>>>>>> >  >> However, general idea is to encode, then mux, and then save to a
>>>>>> file.
>>>>>> >  >> gst-launch v4l2src device=/dev/video0 !
>>>>>> >  >> 'video/x-raw-yuv,width=640,height=480,framerate=30/1' !
>>>>>>  ffenc_mpeg4 !
>>>>>> >  >> mp4mux !filesink location=/home/user/file.
>>>>>> >  >>
>>>>>> >  >> --
>>>>>> >  >> View this message in context:
>>>>>> >  >>
>>>>>> >
>>>>>> <http://gstreamer-devel.966125.n4.nabble.com/how-to-create-a-pipeline-to-record-video-from-camera-tp3134399p3160261.html>
>>>>>> http://gstreamer-devel.966125.n4.nabble.com/how-to-create-a-pipeline-to-record-video-from-camera-tp3134399p3160261.html
>>>>>> >  >> Sent from the GStreamer-devel mailing list archive at
>>>>>> Nabble.com.
>>>>>> >  >>
>>>>>> >  >>
>>>>>> >
>>>>>> ------------------------------------------------------------------------------
>>>>>> >  >> Forrester recently released a report on the Return on Investment
>>>>>> > (ROI) of
>>>>>> >  >> Google Apps. They found a 300% ROI, 38%-56% cost savings, and
>>>>>> break-even
>>>>>> >  >> within 7 months.  Over 3 million businesses have gone Google
>>>>>> with Google
>>>>>> >  >> Apps:
>>>>>> >  >> an online email calendar, and document program that's accessible
>>>>>> > from your
>>>>>> >  >>
>>>>>> >  >> browser. Read the Forrester report:
>>>>>> <http://p.sf.net/sfu/googleapps-sfnew>
>>>>>> http://p.sf.net/sfu/googleapps-sfnew
>>>>>> >  >> _______________________________________________
>>>>>> >  >> gstreamer-devel mailing list
>>>>>> >  >> <gstreamer-devel at lists.sourceforge.net>
>>>>>> gstreamer-devel at lists.sourceforge.net
>>>>>> > <mailto: <gstreamer-devel at lists.sourceforge.net>
>>>>>> gstreamer-devel at lists.sourceforge.net>
>>>>>> >  >> <https://lists.sourceforge.net/lists/listinfo/gstreamer-devel>
>>>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>>> >  >
>>>>>> >  >
>>>>>> >
>>>>>> ------------------------------------------------------------------------------
>>>>>> >  > Forrester recently released a report on the Return on Investment
>>>>>> (ROI) of
>>>>>> >  > Google Apps. They found a 300% ROI, 38%-56% cost savings, and
>>>>>> break-even
>>>>>> >  > within 7 months.  Over 3 million businesses have gone Google with
>>>>>> Google
>>>>>> >  > Apps:
>>>>>> >  > an online email calendar, and document program that's accessible
>>>>>> from
>>>>>> > your
>>>>>> >  > browser. Read the Forrester report:
>>>>>> <http://p.sf.net/sfu/googleapps-sfnew>
>>>>>> http://p.sf.net/sfu/googleapps-sfnew
>>>>>> >  > _______________________________________________
>>>>>> >  > gstreamer-devel mailing list
>>>>>> >  > <gstreamer-devel at lists.sourceforge.net>
>>>>>> gstreamer-devel at lists.sourceforge.net
>>>>>> > <mailto: <gstreamer-devel at lists.sourceforge.net>
>>>>>> gstreamer-devel at lists.sourceforge.net>
>>>>>> >  > <https://lists.sourceforge.net/lists/listinfo/gstreamer-devel>
>>>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>>> >  >
>>>>>>
>>>>>>
>>>>>> ------------------------------------------------------------------------------
>>>>>> Forrester recently released a report on the Return on Investment (ROI)
>>>>>> of
>>>>>> Google Apps. They found a 300% ROI, 38%-56% cost savings, and
>>>>>> break-even
>>>>>> within 7 months.  Over 3 million businesses have gone Google with
>>>>>> Google Apps:
>>>>>> an online email calendar, and document program that's accessible from
>>>>>> your
>>>>>> browser. Read the Forrester report:
>>>>>> <http://p.sf.net/sfu/googleapps-sfnew>
>>>>>> http://p.sf.net/sfu/googleapps-sfnew
>>>>>> _______________________________________________
>>>>>> gstreamer-devel mailing list
>>>>>>  <gstreamer-devel at lists.sourceforge.net>
>>>>>> gstreamer-devel at lists.sourceforge.net
>>>>>>  <https://lists.sourceforge.net/lists/listinfo/gstreamer-devel>
>>>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> Forrester recently released a report on the Return on Investment (ROI)
>>>>> of
>>>>> Google Apps. They found a 300% ROI, 38%-56% cost savings, and
>>>>> break-even
>>>>> within 7 months.  Over 3 million businesses have gone Google with
>>>>> Google Apps:
>>>>> an online email calendar, and document program that's accessible from
>>>>> your
>>>>> browser. Read the Forrester report:
>>>>> <http://p.sf.net/sfu/googleapps-sfnew>
>>>>> http://p.sf.net/sfu/googleapps-sfnew
>>>>> _______________________________________________
>>>>> gstreamer-devel mailing list
>>>>>  <gstreamer-devel at lists.sourceforge.net>
>>>>> gstreamer-devel at lists.sourceforge.net
>>>>>  <https://lists.sourceforge.net/lists/listinfo/gstreamer-devel>
>>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>>
>>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Forrester recently released a report on the Return on Investment (ROI)
>>>> of
>>>> Google Apps. They found a 300% ROI, 38%-56% cost savings, and break-even
>>>> within 7 months.  Over 3 million businesses have gone Google with Google
>>>> Apps:
>>>> an online email calendar, and document program that's accessible from
>>>> your
>>>> browser. Read the Forrester report:
>>>> <http://p.sf.net/sfu/googleapps-sfnew>
>>>> http://p.sf.net/sfu/googleapps-sfnew
>>>>
>>>> _______________________________________________
>>>> gstreamer-devel mailing list
>>>> gstreamer-devel at lists.sourceforge.net
>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Forrester recently released a report on the Return on Investment (ROI)
>>>> of
>>>> Google Apps. They found a 300% ROI, 38%-56% cost savings, and break-even
>>>> within 7 months.  Over 3 million businesses have gone Google with Google
>>>> Apps:
>>>> an online email calendar, and document program that's accessible from
>>>> your
>>>> browser. Read the Forrester report:
>>>> http://p.sf.net/sfu/googleapps-sfnew
>>>> _______________________________________________
>>>> gstreamer-devel mailing list
>>>> gstreamer-devel at lists.sourceforge.net
>>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>>
>>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Forrester recently released a report on the Return on Investment (ROI) of
>>> Google Apps. They found a 300% ROI, 38%-56% cost savings, and break-even
>>> within 7 months.  Over 3 million businesses have gone Google with Google
>>> Apps:
>>> an online email calendar, and document program that's accessible from
>>> your
>>> browser. Read the Forrester report: http://p.sf.net/sfu/googleapps-sfnew
>>> _______________________________________________
>>> gstreamer-devel mailing list
>>> gstreamer-devel at lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>>
>>>
>>
>>
>> ------------------------------------------------------------------------------
>> Forrester recently released a report on the Return on Investment (ROI) of
>> Google Apps. They found a 300% ROI, 38%-56% cost savings, and break-even
>> within 7 months.  Over 3 million businesses have gone Google with Google
>> Apps:
>> an online email calendar, and document program that's accessible from your
>> browser. Read the Forrester report: http://p.sf.net/sfu/googleapps-sfnew
>> _______________________________________________
>> gstreamer-devel mailing list
>> gstreamer-devel at lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20101223/849fe7e5/attachment.htm>

More information about the gstreamer-devel mailing list